Home / 82,191,242.39-113,419,883.87-45,021,687.53

Finding the Fourth Proportional to 82,191,242.39, 113,419,883.87 and 45,021,687.53

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Solution

The fourth proportional to 82,191,242.39, 113,419,883.87 and 45,021,687.53 is: 62,127,720.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,191,242.39 : 113,419,883.87 = 45,021,687.53 : x
  2. Step 2: Convert to fraction form
    82,191,242.39/113,419,883.87 = 45,021,687.53/x
  3. Step 3: Cross multiply
    82,191,242.39x = 113,419,883.87 × 45,021,687.53
  4. Step 4: Simplify right side
    82,191,242.39x = 5,106,354,570,660,651
  5. Step 5: Solve for x
    x = 5,106,354,570,660,651/82,191,242.39
  6. Step 6: Final answer
    x = 62,127,720.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.